body{
	text-align:center;
	background:#F0F0F0;
	margin:0px;
	padding:0px;
}

header, section, footer, aside, nav, article, figure, figcaption, hgroup, div{
	display:block;
}

#uno{
	text-align:center;
	width:1000px;
	background:#FFF;
	margin: 15px auto;
	border-right:1px solid #666;
	border-left:1px solid #666;
}